package com.sky.service.impl;

import com.github.pagehelper.Constant;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Category;
import com.sky.entity.Dish;
import com.sky.entity.DishFlavor;
import com.sky.entity.Setmeal;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;

@Service
public class DishServiceImpl  implements DishService {
    @Autowired
    private DishMapper  dishMapper;
    @Autowired
    private DishFlavorMapper  dishFlavorMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private SetmealMapper setmealMapper;
    @Override
    @Transactional
    public void savewithflavor(DishDTO dishDTO) {
        Dish dish=new Dish();
        BeanUtils.copyProperties(dishDTO,dish);
        dishMapper.add(dish);
        Long dishId=dish.getId();
        List<DishFlavor> flavorList=dishDTO.getFlavors();
        if(flavorList!=null &&  flavorList.size() >0){
            flavorList.forEach(dishFlavor -> {
                dishFlavor.setDishId(dishId);
            });
            dishFlavorMapper.add(flavorList);
        }
    }

    @Override
    public PageResult pageall(DishPageQueryDTO dishPageQueryDTO) {
        PageHelper.startPage(dishPageQueryDTO.getPage(),dishPageQueryDTO.getPageSize());

        Page<DishVO> pageall= dishMapper.pageall(dishPageQueryDTO);

        return new PageResult(pageall.getTotal(),pageall.getResult()) ;
    }

    @Override
    @Transactional
    public void deletes(List<Long> ids) {
        for(Long id:ids){
       Dish dish= dishMapper.selectbyid(id);
           if(dish.getStatus()== StatusConstant.ENABLE){
               throw new DeletionNotAllowedException(MessageConstant.DISH_ON_SALE);
           }

        }
       List<Long> setmeal_ids= setmealDishMapper.getmealidbydishid(ids);
   if(setmeal_ids!=null && setmeal_ids.size()>0){
       throw new DeletionNotAllowedException(MessageConstant.DISH_BE_RELATED_BY_SETMEAL);
   }
        for (Long id : ids) {
            dishMapper.deletebyid(id);
            dishFlavorMapper.deletebyid(id);
        }
    }

    @Override
    public void startorstop(Integer status, Long id) {

        Dish dish = Dish.builder().id(id).status(status).build();
        List<Long> ids = new ArrayList<>();
        ids.add(id);
        dishMapper.update(dish);
        if (status == StatusConstant.DISABLE) {
            List<Long> setmealIds = setmealDishMapper.getmealidbydishid(ids);
            if (setmealIds != null && setmealIds.size() > 0) {
                for (Long setmealId : setmealIds) {
                    Setmeal setmeal = Setmeal.builder()
                            .id(setmealId)
                            .status(StatusConstant.DISABLE)
                            .build();
                    setmealMapper.update(setmeal);
                }
            }

        }
    }

    @Override
    public List<Dish> selectByid(Long categoryId) {
        return  dishMapper.selectbycategoryid(categoryId);




    }

    @Override
    public List<DishVO> listWithFlavor(Dish dish) {
        List<Dish> dishList = dishMapper.selectbycategoryid(dish.getCategoryId());

        List<DishVO> dishVOList = new ArrayList<>();

        for (Dish d : dishList) {
            DishVO dishVO = new DishVO();
            BeanUtils.copyProperties(d,dishVO);

            //根据菜品id查询对应的口味
            List<DishFlavor> flavors = dishFlavorMapper.getByDishId(d.getId());

            dishVO.setFlavors(flavors);
            dishVOList.add(dishVO);
        }

        return dishVOList;
    }

    @Override
    public DishVO getbyidwithflavor(Long id) {
       Dish dish= dishMapper.selectbyid(id);
       List<DishFlavor>dishFlavors= dishMapper.getbyflavor(id);
       DishVO dishVO= new  DishVO();
       BeanUtils.copyProperties(dish,dishVO);
       dishVO.setFlavors(dishFlavors);
        return dishVO;
    }

    @Override
    public void update(DishDTO dishDTO) {
        Dish dish=new Dish();
        BeanUtils.copyProperties(dishDTO,dish);
        dishMapper.update(dish);
        dishMapper.deleteflavor(dish.getId());
        List<DishFlavor> dishFlavorList=dishDTO.getFlavors();
        if(dishFlavorList!=null &&  dishFlavorList.size() >0){
            dishFlavorList.forEach(dishFlavor -> {
                dishFlavor.setDishId(dishDTO.getId());
            });
            dishFlavorMapper.add(dishFlavorList);
        }
    }
}
